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<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="quickbook.syntax.structure"></a>Document Structure</h2></div></div></div>
<div class="toc"><dl class="toc">
<dt><span class="section"><a href="structure.html#quickbook.syntax.structure.docinfo">Document
      Info</a></span></dt>
<dt><span class="section"><a href="structure.html#quickbook.syntax.structure.section">Sections</a></span></dt>
</dl></div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="quickbook.syntax.structure.docinfo"></a><a name="quickbook.ref.docinfo"></a><a class="link" href="structure.html#quickbook.syntax.structure.docinfo" title="Document Info">Document
      Info</a>
</h3></div></div></div>
<div class="toc"><dl class="toc">
<dt><span class="section"><a href="structure.html#quickbook.syntax.structure.docinfo.attributes">Document
        Info Attributes</a></span></dt>
<dt><span class="section"><a href="structure.html#quickbook.syntax.structure.docinfo.nesting">Nesting
        quickbook documents</a></span></dt>
</dl></div>
<p>
        Every document must begin with a Document Info section, which looks something
        like this:
      </p>
<pre class="programlisting">[article The Document Title
    [quickbook 1.7]
    [version 1.0]
    [id the_document_name]
    [copyright 2000 2002 2003 Joe Blow, Jane Doe]
    [authors [Blow, Joe] [Doe, Jane]]
    [license The document's license]
    [source-mode c++]
]
</pre>
<p>
        <code class="computeroutput">article</code> is the document type. There are several possible document
        types, most of these are based on docbook document elements. These are fully
        described in <a href="http://www.docbook.org/tdg/" target="_top">DocBook: The Definitive
        Guide</a>:
      </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/book.html" target="_top">book</a>
          </li>
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/article.html" target="_top">article</a>
          </li>
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/chapter.html" target="_top">chapter</a>
          </li>
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/part.html" target="_top">part</a>
          </li>
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/appendix.html" target="_top">appendix</a>
          </li>
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/preface.html" target="_top">preface</a>
          </li>
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/qandadiv.html" target="_top">qandadiv</a>
          </li>
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/qandaset.html" target="_top">qandaset</a>
          </li>
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/reference.html" target="_top">reference</a>
          </li>
<li class="listitem">
            <a href="http://www.docbook.org/tdg/en/html/set.html" target="_top">set</a>
          </li>
</ul></div>
<p>
        Boostbook also adds another document type <code class="literal"><a class="link" href="../../">library</a></code>
        for documenting software libraries.
      </p>
<p>
        So the documentation for the 'foo' library might start:
      </p>
<pre class="programlisting">[library Foo
    [quickbook 1.7]
    [id foo]
    [version 1.0]
]
</pre>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="quickbook.syntax.structure.docinfo.attributes"></a><a name="quickbook.ref.attributes"></a><a class="link" href="structure.html#quickbook.syntax.structure.docinfo.attributes" title="Document Info Attributes">Document
        Info Attributes</a>
</h4></div></div></div>
<p>
          The document info block has a few different types of attributes. They are
          all optional.
        </p>
<h5>
<a name="quickbook.syntax.structure.docinfo.attributes.h0"></a>
          <span class="phrase"><a name="quickbook.syntax.structure.docinfo.attributes.quickbook_specific_meta_data"></a></span><a class="link" href="structure.html#quickbook.syntax.structure.docinfo.attributes.quickbook_specific_meta_data">Quickbook
          specific meta data</a>
        </h5>
<pre class="programlisting">[quickbook 1.7]
</pre>
<p>
          The <code class="computeroutput">quickbook</code> attribute declares the version of quickbook
          the document is written for. In its absence, version 1.1 is assumed. It's
          recommended that you use <code class="computeroutput">[quickbook 1.7]</code> which is the version
          described here.
        </p>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top">
<p>
            The quickbook version also makes some changes to the markup that's generated.
            Most notably, the ids that are automatically for headers and sections
            are different in later versions. To minimise disruption, you can use
            the <code class="literal">compatibility-mode</code> attribute to generate similar
            markup to the old version:
          </p>
<pre class="programlisting">[article Article that was original
         written in quickbook 1.3
[quickbook 1.7]
[compatibility-mode 1.3]
]
</pre>
<p>
            This feature shouldn't be used for new documents, just for porting old
            documents to the new version.
          </p>
</td></tr>
</table></div>
<p>
          Both the <code class="literal">quickbook</code> and <code class="literal">compatibility-mode</code>
          tags can be used at the start of the file, before the document info block,
          and also in files that don't have a document info block.
        </p>
<pre class="programlisting">[source-mode teletype]
</pre>
<p>
          The <code class="computeroutput">source-mode</code> attribute sets the initial <a class="link" href="phrase.html#quickbook.ref.source_mode">Source
          Mode</a>. If it is omitted, the default value of <code class="literal">c++</code>
          will be used.
        </p>
<h5>
<a name="quickbook.syntax.structure.docinfo.attributes.h1"></a>
          <span class="phrase"><a name="quickbook.syntax.structure.docinfo.attributes.boostbook_docbook_root_element_a"></a></span><a class="link" href="structure.html#quickbook.syntax.structure.docinfo.attributes.boostbook_docbook_root_element_a">Boostbook/Docbook
          root element attributes</a>
        </h5>
<pre class="programlisting">[id foo]
</pre>
<p>
          <code class="computeroutput">id</code> specifies the id of the document element. If it isn't specified
          the id is automatically generated from the title. This id is also used
          to generate the nested ids.
        </p>
<pre class="programlisting">[lang en]
</pre>
<p>
          <code class="computeroutput">lang</code> specifies the document language. This is used by docbook
          to localize the documentation. Note that Boostbook doesn't have any localization
          support so if you use it to generate the reference documentation it will
          be in English regardless.
        </p>
<p>
          It should be a language code drawn from ISO 639 (perhaps extended with
          a country code drawn from ISO 3166, as en-US).
        </p>
<pre class="programlisting">[dirname foo]
</pre>
<p>
          <code class="computeroutput">dirname</code> is used to specify the directory name of the library
          in the repository. This is a boostbook extension so it's only valid for
          <code class="computeroutput">library</code> documentation blocks. It's used for some boostbook
          functionality, but for pure quickbook documentation has no practical effect.
        </p>
<h5>
<a name="quickbook.syntax.structure.docinfo.attributes.h2"></a>
          <span class="phrase"><a name="quickbook.syntax.structure.docinfo.attributes.docbook_metadata"></a></span><a class="link" href="structure.html#quickbook.syntax.structure.docinfo.attributes.docbook_metadata">Docbook
          Metadata</a>
        </h5>
<p>
          <code class="literal">version</code>, <code class="literal">copyright</code>, <code class="literal">authors</code>,
          <code class="literal">license</code>, <code class="literal">last-revision</code> and <code class="literal">bibliod</code>
          are optional information.
        </p>
<h5>
<a name="quickbook.syntax.structure.docinfo.attributes.h3"></a>
          <span class="phrase"><a name="quickbook.syntax.structure.docinfo.attributes.boostbook_metadata"></a></span><a class="link" href="structure.html#quickbook.syntax.structure.docinfo.attributes.boostbook_metadata">Boostbook
          Metadata</a>
        </h5>
<p>
          <code class="literal">purpose</code> and <code class="literal">category</code> are boostbook
          attributes which are only valid for <code class="literal">library</code> documents.
          If you use them for other document types, quickbook will warn about them,
          but still use them, generating invalid markup, that's just ignored by the
          style sheets.
        </p>
<h5>
<a name="quickbook.syntax.structure.docinfo.attributes.h4"></a>
          <span class="phrase"><a name="quickbook.syntax.structure.docinfo.attributes.escaped-docbook"></a></span><a class="link" href="structure.html#quickbook.syntax.structure.docinfo.attributes.escaped-docbook">Escaped
          Docbook</a>
        </h5>
<p>
          From quickbook 1.7 onwards, <a class="link" href="phrase.html#quickbook.ref.escape">escaped
          boostbook or docbook</a> can be included in a docinfo block:
        </p>
<pre class="programlisting">[article Some article
[quickbook 1.7]
'''&lt;author&gt;
    &lt;firstname&gt;John&lt;/firstname&gt;
    &lt;surname&gt;Doe&lt;/surname&gt;
    &lt;email&gt;john.doe@example.com&lt;/email&gt;
&lt;/author&gt;'''
]
</pre>
<p>
          The escaped docbook is always placed at the end of the docinfo block, so
          it shouldn't be assumed that it will interleave with markup generated from
          quickbook. A mixture of quickbook and docbook attributes for the same information
          will not work well.
        </p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="quickbook.syntax.structure.docinfo.nesting"></a><a class="link" href="structure.html#quickbook.syntax.structure.docinfo.nesting" title="Nesting quickbook documents">Nesting
        quickbook documents</a>
</h4></div></div></div>
<p>
          Docinfo blocks can only appear at the beginning of a quickbook file, so
          to create a more complicated document you need to use several quickbook
          files and use the <a class="link" href="block.html#quickbook.ref.include">include tag</a>
          to nest them. For example, say you wish to create a book with an introduction
          and a chapter, you first create a file for the book:
        </p>
<pre class="programlisting">[book Simple example
[quickbook 1.7]
]

[include introduction.qbk]
[include chapter.qbk]
</pre>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
            Structuring a document like this was introduced in quickbook 1.6, so
            a <code class="computeroutput">[quickbook 1.6]</code> or later docinfo field is required.
          </p></td></tr>
</table></div>
<p>
          The appropriate document type for an introduction is <code class="computeroutput">preface</code>,
          so the contents of <code class="computeroutput">introduction.qbk</code> should be something like:
        </p>
<pre class="programlisting">[preface Introduction
[quickbook 1.7]
]

Write the introduction to the book here....
</pre>
<p>
          And <code class="computeroutput">chapter.qbk</code>:
        </p>
<pre class="programlisting">[chapter A chapter
[quickbook 1.7]
]

Chapter contents....
</pre>
</div>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="quickbook.syntax.structure.section"></a><a name="quickbook.ref.section"></a><a class="link" href="structure.html#quickbook.syntax.structure.section" title="Sections">Sections</a>
</h3></div></div></div>
<p>
        Quickbook documents are structured using 'sections'. These are used to generate
        the table of contents, and, when generating html, to split the document into
        pages. This is optional but a good idea for all but the simplest of documents.
      </p>
<p>
        A sectioned document might look like:
      </p>
<pre class="programlisting">[book Title
    [quickbook 1.5]
]

[section First Section]

[/...]

[endsect]

[section Second Section]

[/...]

[endsect]
</pre>
<p>
        Sections start with the <code class="computeroutput">section</code> tag, and end with the <code class="computeroutput">[endsect]</code>
        tag. (<code class="computeroutput">[/...]</code> is a comment, <a class="link" href="../syntax.html#quickbook.ref.comments">described
        later</a>).
      </p>
<p>
        Sections can be given an optional id:
      </p>
<pre class="programlisting">[#quickbook.ref.id]
[section:id The Section Title]
</pre>
<p>
        <code class="computeroutput">id</code> will be the filename of the generated section. If it is not
        present, "The Section Title" will be normalized and become the
        id. Valid characters are <code class="literal">a-Z</code>, <code class="literal">A-Z</code>,
        <code class="literal">0-9</code> and <code class="literal">_</code>. All non-valid characters
        are converted to underscore and all upper-case are converted to lower case.
        Thus: "The Section Title" will be normalized to "the_section_title".
      </p>
<p>
        The end of the section can also have an optional id, this is just used to
        check that it matches the opening of the section.
      </p>
<pre class="programlisting">[section:matching Section with an id]

[/...]

[endsect:matching]
</pre>
<p>
        It won't match a generated id, only one that's explicitly specified, so this
        will be an error, even if quickbook generates the id <code class="computeroutput">generated</code>
        for the section:
      </p>
<pre class="programlisting">[section Generated]

[/...]

[endsect:generated]
</pre>
<p>
        Sections can nest, and that results in a hierarchy in the table of contents.
      </p>
</div>
</div>
<div class="copyright-footer">Copyright © 2002, 2004, 2006 Joel de Guzman,
      Eric Niebler<br>Copyright © 2010-2017 Daniel James<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
</div>
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